I need help processing thermal images

I have photos from an XT2 that I can't get to process. There must be some trick to it that I can't figure out. We flew the site at 90% overlap and it looks like there is plenty of overlap but they will not process. Do I need accurate camera/lens properties? Where can I find those? Is there a specific fisheye correction I need to use? RGB pictures process just fine. ANY help is appreciated. Not sure what else to do. 

Thank you!